OpenTechnical

OT-2026-000007478

Publication integrity record

Bellows cup vacuum gripper, two zone face, ejector fed, sustained blow off after set down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000007478) never changes.

Identity and time

Publication numberOT-2026-000007478 · never reused
Internal UUID01a0a980-4cf0-7c8a-85a6-2a34ec4923ec · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:15:52.946729Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007478
StatusPUBLIC

Content hashes

Canonical textddccdd6a10dd29b8c02f648028b51115f5a616506596a6fa07a1b37f892c3143
Markdown7420d5dcc5b5d8d84caf83806c6f272abeed2202ef31ac33d6a3af9ac4d91be1
PDF
Publication page2f94567cfef4b93e490f45e1dca5ed1b9c45aea60b37975a4d731d39f80a6675
Manifest8b67431a68f59c055a012634578b731199afb521996043cdeb9b85047b333c6b

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureEd4mvhqZIG5PYxo80xVeJyzX/1h2UUxRv6SfqbRqM3zAZUN40lLia6EuOd2meD5I9HQ8ckO42WjcpZX1cGFNBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:03.170741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007478
observed 2f94567cfef4b93e490f45e1dca5ed1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:03.154423ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007478/manifest.json
observed 8b67431a68f59c055a012634578b7311...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:03.140528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007478/publication.md
observed 7420d5dcc5b5d8d84caf83806c6f272a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:03.125385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007478/publication.txt
observed ddccdd6a10dd29b8c02f648028b51115...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.